Centrifugal cream-separator.



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P. A. WEST.

GENTRIPUGAL CREAM SEPARATOR.

APPLICATION FILED JAN. 20, 1905.

2 SHEETS-SHEET 2.

FEED A. WEST, or roRTAeE, WISCONSIN.

-CENTRiFUGAL OREAM-SEPARATOR.

Specification of Letters Patent.

katenteu Maren 27, '1906.

Application filed J snuary 20, 1905. Serial No. 242,014.

To ZZ whom, it may concern:

Be it known that I, FRED A. WEST, a citizen ofthe United States, residing at Portage city, in the county of Columbia .and State of Visconsin, have invented new and useful Improvements 1n Cream-Separato'rs, of which the following is a specification. y

This invention relates to cream-separators.

The objects of the invention are to improve io the construction of such devices; furthermore, to increase their efficiency in operation.

lNit-h the foregoing and other objects in view, which will appearl as the description proceeds, the invention resides in the combir5 nation and arrangement of parts and in the details of construction hereinafter described and claimed as a practical embodiment thereof.

' In the accompanying drawings, forming a zo part of this specification, Figure 1 is a side elevation of a cream-separator constructed in accordiance with the inventiorn Fig. 2 is anend elevation thereof. Fig. 3 is a vertical section. Fig. 4is ahorizontal section on the line 4 4 of Fig. 3. Figs. 5, 6, 7, 8, and 9 arev detail views.

Like reference-numerals indicate corresponding parts in the several views.

The referenceinumeral 1 indicates a frame 3o which may be of any suitable form and construction. Journaled inthe upper portion of the frame 1 is a shaft 2, to which are attached a crank-handle 3 and a bevel gear- Wheel 4. Meshing withthe bevel-gear 4is a v small bevel-gear 5, mounted on the upper end of a shaft 6, suitably journaled in the frame 1 and having on the lower end thereof` a bevel-gear 7, meshing with a bevel-gear 8,

mounted loosely upon a shaft y9,- which is 4o mounted in adjustable bearings 19.

The bevel-gear S is provided with springmressed pins-12, which are adapted to enga-ge grooves 1 1 in a Worm-wheel 13, fixed upon the shaft 9.

`As shown in Fig. 5, the grooves 1 1 in the 4 5 worm-wheel 13 increase gradually in depth from one end to the other, so that -thepins 12 and grooves 11 forni a ratchet connection be tween the bevel-.gears and the worm-wheel 13. The worm -wheel 13 meshes with a 5o worm element 14 upon the lower end of a vertical sha-ft 1 5, which lrests at its lower end upon a ball 16, mounted in a bearing-box 17, having a fiared opening therein, "as shown in i i i Fig.. 6. The shaft 15 at its rupper end exe tends through the sleeve portion 18 of a bearf ing-plate' 19, disposed inside a casing 20.

The sleeve portion 18 extends through a bearing-box 21, secured to the lower end of the casing 2() and having disposed thereina spring-bushing 22. upper end of the shaft 15 is a receptacle 2.3, which is vprovided on its under surface with an annular flange 24, resting upon the bearing-plate 19. An oil receptacle 25, having a supply-pipe 2G, se. ves to lubrieate the shaft 15.

The receptacle is provided interiorly Secured rigidly to the with a plurality of vertieallyfexi ending blades i 27, which are formed in their inner edges with slots 28, into which. are 'fitted collars or rings 29. T he blades 27, together with the collars or rings 29, are adapted to be removed bodiljr from the receptacle 23 when it is necess-ar)7 to clean the same.

Removably secured in any sutable manner to the upper end of the receptacle 23 is o. rap or cover 30, having an upwardly-exiending sleeve portion 31. Secured to the under portion of the cap or cover 30 is a plurality of what shall, for convenience, torni milkexhaust pipes 32, the lower endof each of which pipes terminates adjacent to the inner periphery of the receptacle Q3 at the 'ujanger end thereof. The upper end of each of the pipes 32 extends into a port 33 in the sleeve portion 31 of the vcap or cover 30.

Removably fitted upon the upper end of the casing is a trough-supporting member 34,

23 and an annular cream-trough 3o disposed adjacent to the upper end of the sleeve por tion 31 of the cap or cover 30. 1,

Reinm'ably fitted upon the trough-Suipporting member 34 isa cover 37, having :tu upwardly-extending sleeve portion 38. Secured inthe lower end of the .sleeve portion. 3S is a plate or bottom having a depending tube 4.9,ivhich extends drfuvnw-rd into the receptecl jlf.

Secured` to `the f i ng 20isfa brochet 41., in which is remet lv supported a millo-reservoir 42, hum ga `:aucet 43 arrange-il to deliver milk i the sleeve portion 33 of the cover 37. t faucet 43 is provided with a handle 44, b v means of whichit may be man- IOO the ports 33 onto the upper surface of the cap v he drawn by means of a pipe 49. The cream ually controlled. Disposed inside the sleeve portion 38 is a float-valve 45, having an upwardly-extending stem 46, which projects into the mouth of the faucet 43.

Constructed as above described the operation of' the improved apparatus is as follows: The unseparated milk andcr'eam is placed in the reservoir l2 and the faucet 43 is opened. The Whole milk, as the mixture of milk and cream is called, flows from the faucet 43 into thesleev'e portion 38, the float-valve 45 serving automatically to. cut 'off the flow as soon as a sufficient quantity of milk has been supplied. From the cup Which is formed lo the sleeve portion 38 the milk ilowsthrougli the tube into the receptacle 23. By rotating thecrank-handle 3 the rece tacle 23 is caused to rotate at an extremely gh rate of speed. VThe blades-27 in the receptacle 23 cause the Whole milk therein to rotate at ieally the same speed as the receptacle.

perip N rta'cle, and the cream remains at the een al portion thereof. As the Awhole milk continues to be fed tothe receptacle 23 the Nskimmedmilk adjacent to the periphery thereof flows u Ward through the exhaust-pipes 32 and is de ivered'through or cover 30, after Which by centrifugal force said skimmed milk is thrown a ainst the wall of the troughsupporting mem er 34 and descends into the trough 35, from Which it may in the' central portion ofthe receptacle as cends through the sleeve portion 31 of the cap or cover 3G and is thrown by centrifugalV4 force against the wall of the trough-su porting member 34, after which it deseen s into the cream--trough 3G, from Whichit is drawn through the, pipe 50.

The rines or collars 29 serve to prevent the when milk, which is located between the cream in the central portion of the receptacle and the skinmied milk in the outer portion thereof, lrom rising toward the upper end of tacle 23 is rotated at a high rate oi speed a ,considerable amount of vibration is produced.

Idr'this reason the milk and cream troughs Saud 36, respectively, are separated-annularly from the upper ends of the receptacle 23 and the sleeve portion 31. The spring-bush ing 22 serves to take upthe vibration and to increase the efficiency of the apparatus in operation.

From .the foregoing description it Will he, 'apparent that' the various parts of the improved a paratus' are adapted to be readily' separate for the purpose of cleaning the same.

Changes in the 'precise embodiment of invention illustrated. and described `Inay be made Within the scope of the following claim Without departing from the spirit of the invention or sacrilicingany of its' advantages.

Having thus described my invention, What l claim as new, and desire to secure by Letters Patent, is- 0 A milk-separating apparatus having a rotary receptacle, a plurality of vertical blades f airangedladjace'nt to the periphe of said receptacle and having slots 'exten ing out- Wardly from their inner edges, the outer edges of said blades terminating adjacent to the 1nvner periphery of the receptacle; anda plurality of hor1zontally-disposed collars tted into the slots of said blades, the outer edges of said collars terminating short of the outer `edgesv of said blades, the said collars consti.- "'tuting the sole means for holding the blades in assembled position and the central portion of the receptacle being in free communication with the spaces between the collars.

ln testimony whereof l aiiix my signature in presence of tWo Witnesses.

ERED A. WESTe i Witnesses:

WFH. CLARKE, G. M. BeND. 

